Hello,
Thanks for submitting a question about using forms with your site. BoldGrid uses WPForms to generate dynamic form content. When a user fills out a form, you can view the submissions under WPForms > Entries. However, these submissions are not visible to the public.
In order to have public comments available for viewing, and to allow commenting by non-members, the easiest way to proceed is to create a blog post. Comments are enabled on blog posts by default. In order control how these comments are displayed, or who can post there, you will only need to edit the parameters under Settings > Discussion. From there, you can uncheck the option for Comment must be manually approved.
Once you have received comments, you can moderate, edit, or delete them under Blog Posts > Comments.
Best,
Christopher M.